National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

66°F

19°C

Humidity 87%
Wind Speed Calm
Barometer 29.89 in (1011.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 18 Feb 4:56 am CST
Extended Forecast for

Lockhart TX

  • Today

    Today: Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. Light south southwest wind becoming south 5 to 10 mph in the morning.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. South wind 5 to 10 mph.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 85. South southwest wind around 5 mph becoming north in the afternoon.

    High: 85 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy fog between 4am and 5am. Otherwise, increasing clouds, with a low around 58. East northeast wind around 5 mph becoming southeast in the evening.

    Low: 58 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Mostly cloudy, with a high near 80. North northeast wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 80 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 60. East wind around 5 mph becoming west after midnight.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 76. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. North wind around 15 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 66. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. Light south southwest wind becoming south 5 to 10 mph in the morning.
Tonight
Mostly cloudy, with a low around 63. South wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 85. South southwest wind around 5 mph becoming north in the afternoon.
Thursday Night
Patchy fog between 4am and 5am. Otherwise, increasing clouds, with a low around 58. East northeast wind around 5 mph becoming southeast in the evening.
Friday
Mostly cloudy, with a high near 80. North northeast wind 5 to 10 mph becoming east southeast in the afternoon.
Friday Night
Mostly cloudy, with a low around 60. East wind around 5 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 76. North wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 42. North wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 66. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
4:32 am CST Feb 18, 2026
Forecast Valid:
5am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
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